For the Inventor, By the Inventor

Enter assignee name

Tanaka Kogyo Corporation Limited

USPTO Granted Patents = 1

Forward Citations = 35

Loading Chart...

Loading Chart...

4 inventors (with patents filed for the assignee):

Hiroshi Koizumi (1 out of 59 patents)

Toshio Hirosawa (1 out of 5 patents)

Hachishiro Kobayashi (1 out of 3 patents)

4. Itaru Tanaka (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 5521886 - Diaphragm for use with an electro-acoustic transducer and method of (1996-05-28),

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#5,735 in Tokyo

#15,539 in Japan

Tanaka Kogyo Corporation Limited

Forward Citations = 35

4 inventors:

Hiroshi Koizumi (1 out of 59 patents)

Toshio Hirosawa (1 out of 5 patents)

Hachishiro Kobayashi (1 out of 3 patents)

4. Itaru Tanaka (1 out of 1 patent)

Please report any incorrect information to support@idiyas.com

Loading…